Online research in philosophy

The situation calculus is a logical formalism that has been extensively developed for planning. We apply the formalism in a complex multi-agent domain, modelled on the game of Clue. We find that the situation calculus, with suitable extensions, supplies a unified representation of (1) the interaction protocol, or structure of the game, (2) the dynamics of the knowledge and common knowledge of the agents, and (3) principles of strategic planning.

John Martin Fischer and Mark Ravizza have constructed a theory of moral responsibility according to which agents are responsible only if they take responsibility in a particular way. Crucial to taking responsibility is coming to adopt a certain set of beliefs about oneself, such as the belief that one is a legitimate target of attitudes like gratitude and resentment, praise and blame. Moreover, agents must come to adopt this belief in a way that is 'appropriately based' upon their evidence, if they are to be genuinely responsible for what they do. In this paper I argue that agents need not meet these conditions in order to be morally responsible. I offer a case in which the agent thinks of himself as responsible, appears to be responsible, but fails to take responsibility in Fischer and Ravizza's sense. I then argue that Fischer and Ravizza's account of responsibility for consequences is in conflict with their contention that individuals who reject the justifiability of responsibility ascriptions fail, thereby, to be morally responsible agents.

An individual is agent-responsible for an outcome just in case it flows from her autonomous agency in the right kind of way. The topic of agent-responsibility is important because most people believe that agents should be held morally accountable (e.g., liable to punishment or having an obligation to compensate victims) for outcomes for which they are agent-responsible and because many other people (e.g., brute luck egalitarians) hold that agents should not be held accountable for outcomes for which they are not responsible. In this paper, I examine how false beliefs affect agent-responsibility. Unlike most of the papers in this collection, my paper is on the notion of agent-responsibility that many believe is relevant to justice and morality generally. I do not here address the question of how, if at all, justice and morality are sensitive to agent-responsibility.

Hommel et al. propose that high-level perception and action planning share a common representational domain, which facilitates the control of intentional actions. On the surface, this point of view appears quite different from an alternative account that suggests that “action” and “perception” are functionally and neurologically dissociable processes. But it is difficult to reconcile these apparently different perspectives, because Hommel et al. do not clearly specify what they mean by “perception” and “action planning.” With respect to the visual control of action, a distinction must be made between conscious visual perception and unconscious visuomotor processing. Hommel et al. must also distinguish between the what and how aspects of action planning, that is, planning what to do versus planning how to do it.

John Martin Fischer and Mark Ravizza have constructed a theory of moral responsibility according to which agents are responsible only if they take responsibility in a particular way. Crucial to taking responsibility is coming to adopt a certain set of beliefs about oneself, such as the belief that one is a legitimate target of attitudes like gratitude and resentment, praise and blame. Moreover, agents must come to adopt this belief in a way that is ‘appropriately based’ upon their evidence, if they are to be genuinely responsible for what they do. In this paper I argue that agents need not meet these conditions in order to be morally responsible. I offer a case in which the agent thinks of himself as responsible, appears to be responsible, but fails to take responsibility in Fischer and Ravizza’s sense. I then argue that Fischer and Ravizza’s account of responsibility for consequences is in conflict with their contention that individuals who reject the justifiability of responsibility ascriptions fail, thereby, to be morally responsible agents.

In the context of his highly influential defence of compatibilism, P. F. Strawson introduced the terms ‘reactive attitude’ and ‘objective attitude’ to the free-will lexicon. He argued, in effect, that relinquishing such reactive attitudes as resentment and moral indignation isn’t a real possibility for us, since doing so would commit us to exclusive objectivity, a stance incompatible with ordinary interpersonal relationships. While most commentators have challenged Strawson’s link between personal relationships and the reactive attitudes, Tamler Sommers has recently taken up Strawson’s claim that exclusive objectivity would preclude meaningful relationships. Here I set out a defence of this claim by identifying a kind of interpersonal caring that is plausibly both required for such relationships and excluded by the objective attitude. I then argue that this defence helps to support Strawson’s more controversial claim about personal relationships and the reactive attitudes.

We question the generalizability of Glover's model because it fails to distinguish between different forms of planning. The highly controlled experimental situations on which this model is based, do not reflect some important factors that contribute to planning. We discuss several classes of action that seem to imply distinct planning mechanisms, questioning Glover's postulation of a single “planning system.”.

The debate surrounding the issue of collective moral responsibility is often steeped in metaphysical issues of agency and personhood. I suggest that we can approach the metaphysical problems surrounding the issue of collective responsibility in a roundabout manner. My approach is reminiscent of that taken by P.F. Strawson in "Freedom and Resentment" (1968). Strawson argues that the participant reactive attitudes - attitudes like resentment, gratitude, forgiveness and so on - provide the justification for holding individuals morally responsible. I argue that the framework of the reactive attitudes extends to collectives and provides the justification for holding collectives morally responsible.

Almost everyone allows that conditions can obtain that exempt agents from moral responsibility—that someone is not a morally responsible agent if certain conditions obtain. In his seminal Freedom and Resentment, Peter Strawson denies that the truth of determinism globally exempts agents from moral responsibility. As has been noted elsewhere, Strawson appears committed to the surprising thesis that being an evil person is an exempting condition. Less often noted is the fact that various Strawsonians—philosophers sympathetic with Strawson’s account of moral responsibility—at least appear to have difficulty incorporating evil persons into their accounts of moral responsibility. In what follows, I argue that Strawson is not committed to supposing that being evil is an exempting condition—at least, that he can allow that evil persons are morally responsible agents.

In his seminal essay “Freedom and Resentment,” Strawson drew attention to the role of such emotions as resentment, moral indignation, and guilt in our moral and personal lives. According to Strawson, these reactive attitudes are at once constitutive of moral blame and inseparable from ordinary interpersonal relationships. On this basis, he concluded that relinquishing moral blame isn’t a real possibility for us, given our commitment to personal relationships. If well founded, this conclusion puts the traditional free-will debate in a new light. In particular, in so far as incompatibilists believe that we can or should forgo moral blame if determinism is true, their stance may seem out of touch with our emotional reality. Here I examine Strawson’s claim that the reactive attitudes are inseparable from ordinary interpersonal relationships. Strawson says surprisingly little to support this intriguing claim, and thus far no argument for it has emerged in the literature. My aim is to remedy this. Specifically, I set out an argument for a suitably formulated version of the inseparability claim, an argument that appeals to the relationship between the reactive attitudes and other elements of our emotional lives. I then show how this argument helps to answer an important recent challenge to Strawson’s position. If I am right, there is good reason to doubt that the reforms envisaged by some incompatibilists, reforms to our blame-related practices, are a real possibility for us.